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/*
*
* Copyright 2022 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package envconfig
import (
"os"
"testing"
"google.golang.org/grpc/internal/grpctest"
)
type s struct {
grpctest.Tester
}
func Test(t *testing.T) {
grpctest.RunSubTests(t, s{})
}
func (s) TestUint64FromEnv(t *testing.T) {
var testCases = []struct {
name string
val string
def, min, max uint64
want uint64
}{
{
name: "error parsing",
val: "asdf", def: 5, want: 5,
}, {
name: "unset",
val: "", def: 5, want: 5,
}, {
name: "too low",
val: "5", min: 10, want: 10,
}, {
name: "too high",
val: "5", max: 2, want: 2,
}, {
name: "in range",
val: "17391", def: 13000, min: 12000, max: 18000, want: 17391,
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
const testVar = "testvar"
if tc.val == "" {
os.Unsetenv(testVar)
} else {
os.Setenv(testVar, tc.val)
}
if got := uint64FromEnv(testVar, tc.def, tc.min, tc.max); got != tc.want {
t.Errorf("uint64FromEnv(%q(=%q), %v, %v, %v) = %v; want %v", testVar, tc.val, tc.def, tc.min, tc.max, got, tc.want)
}
})
}
}
func (s) TestBoolFromEnv(t *testing.T) {
var testCases = []struct {
val string
def bool
want bool
}{
{val: "", def: true, want: true},
{val: "", def: false, want: false},
{val: "true", def: true, want: true},
{val: "true", def: false, want: true},
{val: "false", def: true, want: false},
{val: "false", def: false, want: false},
{val: "asdf", def: true, want: true},
{val: "asdf", def: false, want: false},
}
for _, tc := range testCases {
t.Run("", func(t *testing.T) {
const testVar = "testvar"
if tc.val == "" {
os.Unsetenv(testVar)
} else {
os.Setenv(testVar, tc.val)
}
if got := boolFromEnv(testVar, tc.def); got != tc.want {
t.Errorf("boolFromEnv(%q(=%q), %v) = %v; want %v", testVar, tc.val, tc.def, got, tc.want)
}
})
}
}
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